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Finding the Fourth Proportional to 314,720.87, 472,492.85 and 186,870.60

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Solution

The fourth proportional to 314,720.87, 472,492.85 and 186,870.60 is: 280,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,720.87 : 472,492.85 = 186,870.60 : x
  2. Step 2: Convert to fraction form
    314,720.87/472,492.85 = 186,870.60/x
  3. Step 3: Cross multiply
    314,720.87x = 472,492.85 × 186,870.60
  4. Step 4: Simplify right side
    314,720.87x = 88,295,021,440.86
  5. Step 5: Solve for x
    x = 88,295,021,440.86/314,720.87
  6. Step 6: Final answer
    x = 280,550.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.